I'm fighting since 14.04 LTS with this lease file issue. The fixes provided in the release of isc-dhcp-server 4.3.3-5ubuntu12 does not fix the behaviour in 16.04 LTS (xenial) for me. The reason is the configuration of apparmaor for the binary /usr/sbin/dhcpd, which prevent the manipulation of the leases file. I tried to fix the capabilities, but can't find a solution. The settings "capability dac_override" has no effect.
Temporary I disabled apparmor interception for isc-dhcpd-server by symlinking to disable folder. # ln -s /etc/apparmor.d/usr.sbin.dhcpd /etc/apparmor.d/disable/ and restartet the dhcpd. This solves the problem, but it let the dhcpd be unprotected by apparmor. To fix it finaly, please provide a working /etc/apparmor.d/usr.sbin.dhcpd with the required policy file. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to isc-dhcp in Ubuntu. https://bugs.launchpad.net/bugs/1186662 Title: isc-dhcp-server fails to renew lease file Status in isc-dhcp package in Ubuntu: Fix Released Status in isc-dhcp source package in Trusty: Triaged Bug description: After raring upgrade, the dhcp server fails to renew lease file when it tries to (about every hour). The syslog says: dhcpd: Can't create new lease file: Permission denied It looks like a permission problem, because # chown -R dhcpd:dhcpd /var/lib/dhcp the above command temporarily solves the issue, until dhcpd is restarted: at that time, the ownership of the directory and the lease file is set back to root:root. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
